RollingCovariance nan nan nan nan nan nan nan nan nan nan nan nan nan nan 5.118817879971109 4.1027913811962105 3.1206263250548307 2.520556634870709 2.5039271079060974 3.0536266661924505 3.9442060775346914 4.82802347904016 5.363355814773972 5.33629480558142 4.7330126988542 3.7393931870665496 2.6720806648850366 1.8682317872792766 1.572983109066476 1.8614171906099544 2.618236644159986 3.579109317734771 4.41890241952818 4.858635234513748 4.757817275895573 4.162876118898045 3.2948602783571013 2.4779068258209307 2.0294665294417737 2.1478944241410574 2.8368774427099206 3.8961507799884982 4.985825264086334 5.744517052571927 5.919674603998883 5.461469053700076 4.54348419348084 3.5005812500791365 2.7062851523625833 2.435825920453852 2.766642241478388 3.55332442129365 4.4848725855193505 5.20081230243975 5.421648387338747 5.04600516521788 4.181550481274107 3.1023889971291156 2.151607329080898 1.624789293593102 1.6738369303254017 2.261004380706236 3.1753906284673112 4.104490331243592 4.737320308617676 4.866834366670993 4.459542954072184 3.6694287670775187 2.7895799325915127 2.154647439570485 2.024658405734084 2.4896493200050345 3.4304387831105148 4.553189867480107 5.4892136457115175 5.926145221730198 5.722559819403809 4.962082568777078 3.924776607678818 2.985113640778599